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Note 3 - Allowance for Doubtful Accounts
12 Months Ended
Nov. 30, 2018
Notes to Financial Statements  
Allowance for Credit Losses [Text Block]
(
3
)
Allowance for Doubtful Accounts
 
A summary of the Company’s activity in the allowance for doubtful accounts is as follows:
   
For the Twelve Months Ended
 
   
November 30, 2018
   
November 30, 2017
 
Balance, beginning
  $
32,298
    $
22,746
 
Provision charged to expense
   
2,242
     
11,187
 
Less amounts charged-off
   
(9,440
)    
(1,635
)
Balance, ending
  $
25,100
    $
32,298